The Development of ABS Technology in Harley-Davidson Motorcycles

Harley-Davidson introduced anti-lock braking system (ABS) technology to improve rider safety, enhance control during emergency braking, and meet evolving regulatory standards. While ABS was once considered unnecessary for cruisers, advancements in braking systems and safety regulations made it a key feature in modern Harley-Davidson motorcycles.

1. Early Years – Pre-ABS Era

Before ABS, Harley riders relied entirely on mechanical skill and brake modulation to prevent wheel lock-up. Given the heavyweight nature of Harleys, sudden braking, especially in wet or uneven conditions, often led to skidding or loss of control.

• Older Harleys used single-disc brake setups, with front brakes providing most of the stopping power.

• Many models in the 1980s and early 1990s still featured rear drum brakes, gradually transitioning to disc brakes for improved performance.

2. Harley-Davidson’s First ABS Introduction (2005)

Harley first introduced optional ABS in 2005 for select police motorcycles, particularly the Electra Glide Police (FLHTP).

• Law enforcement needed improved stopping power for high-speed chases and emergency stops.

• The early ABS systems were rudimentary but effective, preventing wheel lock-ups on slippery surfaces.

3. ABS Becomes Available for Touring Models (2008)

By 2008, Harley-Davidson introduced optional ABS on civilian models, starting with:

• Touring bikes (Road Glide, Street Glide, Electra Glide, and Road King)

• Select CVO models

This ABS system, developed in partnership with Brembo, improved brake modulation by using wheel-speed sensors to prevent skidding.

Key Features of 2008 ABS:

• Sensors on both wheels monitored rotational speed.

• The system pulsed the brakes rapidly to prevent wheel lock-up.

• A small ABS module was discreetly integrated to maintain Harley’s clean aesthetic.

4. Expanding ABS Across Harley’s Lineup (2012-2014)

Between 2012 and 2014, Harley-Davidson made ABS available across more models, including:

• Softail and Dyna models (2012)

• Sportster models (2014)

• ABS became standard on all Touring bikes by 2014.

This period marked a shift where ABS was no longer just an option but a core safety feature, following industry trends and regulatory pressures.

5. Reflex™ Linked ABS (2014 – Present)

In 2014, Harley-Davidson introduced Reflex™ Linked ABS, a major upgrade that provided:

• Front and rear wheel linking (at speeds above 20 mph).

• Balanced braking force between front and rear brakes.

• Better stability in emergency braking scenarios.

This was particularly beneficial for heavier bikes like the Ultra Limited and Road Glide Limited, where optimal braking distribution significantly improved rider confidence.